nether region vs Inferno

nether region and Inferno both are nouns.

Word	Noun	Adjective	Verb	Adverb
nether region	Yes	No	No	No
Inferno	Yes	No	No	No

As nouns, nether region and Inferno are synonyms defined as:

nether region and Inferno: (Christianity) the abode of Satan and the forces of evil; where sinners suffer eternal punishment

Other synonyms of nether region include Hell, infernal region, perdition, pit.

nether region (noun)	Inferno (noun)
(Christianity) the abode of Satan and the forces of evil; where sinners suffer eternal punishment	(Christianity) the abode of Satan and the forces of evil; where sinners suffer eternal punishment